My first time kegging.I have read that a 5 lb. CO2 bottle can be used on about 15-20, 5 gallon kegs before it gets empty.I put a new bottle on last night,no leaks can be found,I discharghed about 8-10 beers from a 5 gallon keg.The bottle was at about 750-800 psi when full.I did notice it drop about 100 psi after it got cold.My bottle is arround 500 psi noe,I can't see it lasting more than 2-3 kegs at most.How long can I expect a 5 lb. bottle to last.I was at about 10 psi to discharge my beer,is that to high??Where should I be.

The pressure drops a lot when it gets cold. Don't worry about it. I keep mine at 12 psi but there is a little trial and error and tweeking depending on your guage. Don't turn it down to that pressure. Instead turn it down and then back up to pressure. Using keg lube on the o-rings, mine lasts for months.

My first time kegging.I have read that a 5 lb. CO2 bottle can be used on about 15-20, 5 gallon kegs before it gets empty.I put a new bottle on last night,no leaks can be found,I discharghed about 8-10 beers from a 5 gallon keg.The bottle was at about 750-800 psi when full.I did notice it drop about 100 psi after it got cold.My bottle is arround 500 psi noe,I can't see it lasting more than 2-3 kegs at most.How long can I expect a 5 lb. bottle to last.I was at about 10 psi to discharge my beer,is that to high??Where should I be.

The pressure reading on the high side of the gauge changes with temperature. It drops a lot when you put the bottle in the fridge. It will stay at that new level for months. When the bottle is very near empty it will start dropping a bit everyday.

PS. If you are force carbing your beer you will get more like 5-7 5 gallon kegs per 5 lb bottle. The number you quote is for already carbed (naturally carbed) kegs.

I am still on my first fill of my 5# CO2 tank. I've had six beers and one Ginger Ale Soda on tap (over 5 months), and it's still going. I don't bother to read the bottle pressure gauge, it seem wildly inaccurate at 35F.

I was dispensing at 15psi but that seems a bit high for my short (3-4') lines. I just lowered it to 10psi.